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April 20, 2014

Homework Help: Physics

Posted by Morgn on Friday, September 14, 2012 at 12:56pm.

Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB (relative to the threshold of hearing) for a period of 9.0 hours. One particular eardrum has an area of 1.90 10-4 m2. How much sound energy is incident on this eardrum during this time?

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